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root clay
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root clay
Encyclopedia
理学
含煤岩系
释
root clay
根土岩
成煤植物生长的土壤形成的、富含植物根化石的煤层或煤线的底板岩石。又称底黏土。
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historical data of the Long March
Historical Data Series of the Imperial Palace Flood and Waterlogging Archives in the Qing Dynasty
historical demography
historical determinism
historical development of farming system
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historical development of semi-submersible platform
historical development of teacher education in China
historical development of Tension leg Platform
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historical discourses
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Historical Documents of Ming and Qing Dynasties
historical drama
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historical epistemology
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historical evaluation
Historical Evaluations and Judgments
historical events
Historical Events in Their Entirety: A Rearrangement of Zizhi Tongjian
Historical Events in Their Entirety,block-printed edition by Yanlingjunzhai,second year of Chunxi era,Song Dynasty
historical evidence
historical evolutionism
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更新时间:2025/11/19 2:37:40